SpoofCheck
🇫🇷Free email security analysis

Results for longmontcolorado.gov

90A
This domain is protected against spoofing

SPF

OK
v=spf1 ip4:69.87.213.0/24 include:spf.protection.outlook.com ~all

DKIM

OK
Selectors: selector1, k1

DMARC

OK
v=DMARC1; p=reject; rua=mailto:dmarc@longmontcolorado.gov; ruf=mailto:dmarc@longmontcolorado.gov; sp=reject; fo=1; adkim=s; aspf=s

MX

OK
longmontcolorado-gov.mail.protection.outlook.com

MTA-STS

Missing

No record found

Read the guide

Recommendations

  1. 1Add MTA-STS to enforce TLS encryption for incoming emails

    Without MTA-STS, an attacker performing a man-in-the-middle attack can downgrade the connection between mail servers to plaintext, intercepting emails in transit. MTA-STS tells sending servers to only deliver via TLS with a valid certificate, preventing downgrade attacks.

Check another domain

Badge for your website

Display your email security score on your website.

SpoofCheck badge for longmontcolorado.gov
<a href="https://spoofchecker.online/en/email-security/longmontcolorado.gov" target="_blank" rel="noopener"><img src="https://spoofchecker.online/api/badge/longmontcolorado.gov?score=90&grade=A" alt="Email security score for longmontcolorado.gov" height="28"></a>